Centrifugal force-pump



(No-Mode1.) E. S. NICHOLAS 8c J. R. TURNER.

GENTRIPUGAL FORGE PUMP.

Patented Nov. 1 0, 1891.

' LULHI lllnllfl.. Il Il UNITED l STATES PATENT OFFICE.

EDVARD S. NICHOLAS AND JOSEPH R.,TURNER, OF GREENVILLE, OIIIO.-

CENTRI FUGAL FORC E-PU Nl P.

SPECIFICATION forming part of Letters Patent No. 462,987, dated November 10, 1891.

Application tiled December 26, 1890. Serial No. 375,889. (No model.)

To all lwhom it may concern:

Be it known that we, EDWARD S. NIcHoLAs and JOSEPH R. TURNER, both of Greenville, in the county of Darke and State of Ohio, have invented a new and Improved Centrifugal Force-Pump, of which the following is a full, clear, and exact description.

The invention relates to centrifugal forcepumps such as shown and described in the application for Letters Patent of the United States, Serial No. 351,683, filed by us on the 13th day of May, 1890, and allowed September 11, 1890.

The object of the present invention is to provide a new and improved centrifugal forcepump which is simple and durable in construction and in which the friction is reduced to a minimum, so that the motive power employed for actuating the pump is utilized to the greatest advantage.

The invention consists of a hollow revoluble inverted duplex cone mounted to turn near the top of and within a casing which combines a water-receiver and an air-chainloer.

The invention also consists of certain parts and details and combinations of the same, as will be hereinafter fully described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

` ing A is provided with a base C and a cover D, formed with an inwardly and upwardly slanting annular side E, connecting at its upper edge by a semicircular Wall F with the horizontal top G, which supports a bridge H, in which is mounted to turn the main driving-shaft I, extending through suitable stuffing-boxes J into the casing A, and secured at its lower end in the top of the cone B, as is plainly illustrated in Fig. l.

The cone B is made of two conical disks K and L, which form a main Water-chamber N, leading into a pipe O, formed centrally on the lower disk K and resting with its lower edge on the base O. In this pipe OV screws a short pipe P, which extends through the base C into a suitable stufling-box Q, held on the under side of the base C. IVith the stuffing box Q connects the suction-pipe R, extending into the liquid to be elevated, the lower end of the said suction-pipe being provided with a valve S, adapted to open upwardly. The outer edge of the lowermost disk K is connected by a U-shaped Wall T with the top of the disk L, which latter extends close to the outermost part of the wall T, so as to form a port @,which connects the main chamber N with the auxiliary chamber U, formed by the Wall T. Into this auxiliary chamber U, near its top, leads a port h, having its lower end opening into the casing, as is plainly indicated to the right in Fig. l. The extension L of the top disk L, which forms the bottom forthe chamber U, extends to the inner wall of the exhaust-port h, as is plainly shown in Figs. l and 2, the rest of the extension L forming, with the outer part of the wall T, the port ct,- as previously described.

The port b may be directly formed in the cone B by casting it therein, or it may be made in the shape of one or more pipes extending from the top of the auxiliary chamber U into the casing A. The wall extends into the semicircular wall F of the cover D Without, however, touching the inside of the same, as is plainly shown in Fig. l. The several parts of the cone B are suitable distances from the interior surfaces of the casing A, with the only exception of the pipe O, resting on the base C, as previously7 described.

In the base A and near its outer edge is arranged a downwardly-extending U-shaped discharge-pipe V, through 'which the water escapes. In order to guide the water into the outlet-pipe V and to prevent it from passing over the said outlet, a pocket or stop IV is provided, made in the shape of a hood and IOO placed over the opening, as is plainly indicated in Figs. l, 2, and 3.

When the main driving-shaft I is rotated, a rotary motion is imparted to the cone B, so that the water is sucked into the main chamber N of the said cone in the manner described in the application for Letters Patent above referred to. The water passes to the outer edge of the main chamber N by the centrifugal force, to pass finally through the port d into the annular auxiliary chamber U, formed onl the top of the uppermost disk L of the cone B. The water finally fills this chamber U and passes out through the outlet-port b into the casing A. The cone B is formed on its under side, at its perimeter, with an annular flange preferably extended downward and outward, as indicated in Fig. 1, so that the water passing down the outlet-port b passes onto this iiange and is sprayed into the casing A. The water falling into the casing A has sufficient inertia to iiow circularly in the said casing untiLits movement `is interrupted by passing into the hood W, which deflects the water into the outlet-pipe V, from which the water can pass to its destination. It will be seen that as long as the cone B is in motion the chambers N and U remain filled with water, and consequently no air can pass through the outlet-port b into the said chambers U and N. When the rotary motion of the cone B is stopped, then the Water in the auxiliary chamber U flows back and fills the main chamber N, so that the latter does not require any priming after it has once been filled in starting the pump. It will further be seen that by making the outletpipe V U-shaped, as shown in Fig. l, the casing A remains at all. times sealed, so that the air cannot escape from the said casingor pass into the same from the outside through the said outletpipe V. This has the further advantage that the air always remaining in the casing A prevents the water discharged into the casing through the outlet-port b from accumulating in the said casing until the cone B- is submerged. If the latter should take place, it would naturally retard the movement of the cone. It is understood that as soon as the water begins to `discharge into the casing A the air therein is compressed to a considerable extent, so that the cone is revolving in compressed air.

Having thus fullydescribed my invention, I claim as new and desire to secure by Letters Patentv l. In a centrifugul force-pump, the combination of an inverted hollow revoluble duplex cone and combined air-chamber and waterreceiver having a base and a cover formed withan inwardly and upwardly slanting annular side and a horizontal top connected at the upper edge of the side by a semicircular wall, in the inclosed convex space of which an auxiliary chamber of the hollow cone is mounted, substantially as shown and described.

2. In a centrifugal force-pump, a revoluble inverted hollow duplex cone having two conical disks of different angles of Obliquity and an auxiliary annular chamber on the base of said cone, substantially as shown and described.

3. In a centrifugal force-pump, a hollow revoluble inverted duplex cone having an auxiliary chamber on the periphery of its base,

the area of the perpendicular section of which is greater than the area of the perpendicular section at its circumference of the chamber inclosed between the two conical disks of the hollow duplex cone, substantially as shown and described.

4.- In' a centrifugal forcepump, a hollow revolubleinverted duplex cone having an annular auxiliary chamber on the periphery of its base and an annular opening or port-holes leading into its outer circumference from the chamber inclosed between the two conical disks of the hollow cone, substantially as set forth.

5. In a centrifugal force-pump, a hollow revoluble inverted duplex cone having an annular auxiliary chamber on the circumference of its base, and inclosed exit-ports extending from the top of its inner circumference within the circumference of the receivingports of said auxiliary chamber downward through the wall of said auxiliary chamber, substantially as shown and described.

6. In a centrifugal force-pump, a hollow revoluble inverted duplex cone having a main chamber, an annular auxiliary ldischargechamber mounted on said cone, and port-holes within the hollow cone leading from the said main chamber into a said auxiliary chamber,

substantially as shown and described.

7. In a centrifugal force-pump, a revoluble inverted duplex cone forming a main chamber and provided with an annular dischargechamber arranged on the base of the cone and connected by a port with the said main chamber, the said auxiliary discharge-chamber bei ing provided with an outlet-port extending downward and discharging against the under surface of an annular outwardly and downwardly extending iange formed on the perimeter of the cone, substantially as shown and described.

8. In a centrifugal force-pump, the combination, with a casing provided with an outletpipe and a suction-pipe containing a valve, of an inverted duplex hollow cone mounted to turn in the said casing and provided with a main chamber connected at its apex withv the said suction-pipe, an auxiliary dischargechamber arranged on the base of the cone and connected with the said main chamber by an inlet-port and with the said casing by an/outlet-port, and an annular downwardly and outwardly extending flange arranged on, the perimeter of the said cone and against the un- IIC in the said casing near its top and discharging into the said casing, at Ishesame time revolving in compressed air sealed in the said casing, and a water-stop arranged above the opening of the said outlet-pipe in the bottom of the casing, substantially as shown and described.

VEDWARD. s. NICHOLAS.

JosRPI-t R. TURNER.

Vitnesses:

T. T. BARKALow, D. P. IRWIN. 

